At that point, we either have to hope climate sensitivity is on the very low end of the range that scientists have estimated, or we're busting through the 2 °C limit. (vox.com)
The 1.5 degree C IPCC lower end of the range for CO2 doubling climate sensitivity is suspect. (realclimate.org)
«In my view this sentence is at the very low end of the range suggested in the case authorities. (straight.com)